Amazon Kuiper second satellite launch postponed by ULA due to rocket booster issue

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United Launch Alliance on Monday was forced to delay the second flight carrying a batch of Amazon

’s Project Kuiper internet satellites because of a problem with the rocket booster.

With roughly 30 minutes left in the countdown, ULA announced it was scrubbing the launch due to an issue with “an elevated purge temperature” within its Atlas V rocket’s booster engine. The company said it will provide a new launch date at a later point.

“Possible issue with a GN2 purge line that cannot be resolved inside the count,” ULA CEO Tory Bruno said in a post on Bluesky. “We will need to stand down for today. We’ll sort it and be back.”